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Staurolite
Staurolite

Hemimorphite
Hemimorphite



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Staurolite
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Hemimorphite

Staurolite and Hemimorphite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.7-3.83.30-3.50
Amber
1 7.18
1.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
1.6 Cleavage
Distinct on {010}
Perfect on {110}, poor on {101}, {001} rare
1.7 Mohs Hardness
7-7.55
Amber
2 10
1.8 Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Zn 4Si 2O 7(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Staurolite and Hemimorphite Chemical Formula

While comparing Staurolite and Hemimorphite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Staurolite and Hemimorphite chemical formula.

  • Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
  • Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Staurolite and Hemimorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.